I immediately knew what you meant, because I ran into the bug while testing earlier today and apparently forgot to file it. So thanks for reporting - I've filed it now properly and should have it fixed soon.
Hey man, awesome job and while i'm hitting that same bug: Changing to 512px does not resize the glasses for me and it's on the wrong placement.
This is great for mastodon replies so PLEASE make this work.
Hang tight!